- A. The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses that are supported.
- B. Because of the addressing on interface FastEthernet0/1, the Serial0/0 interface address will not support the NAT configuration as shown.
- C. The number 1 referred to in the ip nat inside source command references access-list number 1.
- D. ExternalRouter must be configured with static routes to networks 172.16.1.0/24 and 172.16.2.0/24.
Answer: Option C. Explanation
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